Injector good balance rate bad
 

Hello, I had smoke and fuel smell with 2 injector rates high so I pulled my injectors. Sent them off to the shop that built them and they said that my rates where off a tiny bit but they should not have given me high balance rates. So the diesel shop that built my motor said it could possible be the ecm, that the solenoid drivers may be worn out and throwing the injectors off. This sound right? I just don"t wanna buy a new ecm and get it reprogrammed if I don't have to.